| 摘要 |
A portable electronic device includes a case, a push-push mechanism, and an element. The push-push mechanism includes a hollow column disposed in the case and having alternately arranged long grooves and short grooves, a pushing component having an inner end portion extending into the hollow column, a rotating component movably disposed in the hollow column, and a spring disposed for biasing the rotating component toward the pushing component. The pushing component is movable together with the element relative to the hollow column between a received position and an ejected position, where the positioning teeth are slidably and respectively received in the long grooves and the element is ejected out of the case.
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